Commit f8c31c8f authored by Hannes Frederic Sowa's avatar Hannes Frederic Sowa Committed by David S. Miller
Browse files

ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh 



Fixes a suspicious rcu derference warning.

Cc: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e267cb96

net/ipv6/ip6_flowlabel.c

+2 −0
Original line number Diff line number Diff line
@@ -457,8 +457,10 @@ static int mem_check(struct sock *sk) 
	if (room > FL_MAX_SIZE - FL_MAX_PER_SOCK)

		return 0;



	rcu_read_lock_bh();

	for_each_sk_fl_rcu(np, sfl)

		count++;

	rcu_read_unlock_bh();



	if (room <= 0 ||

	    ((count >= FL_MAX_PER_SOCK ||